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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/profile.h
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
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+/* Header file for minimum-cost maximal flow routines used to smooth basic
+ block and edge frequency counts.
+ Copyright (C) 2008-2014 Free Software Foundation, Inc.
+ Contributed by Paul Yuan (yingbo.com@gmail.com)
+ and Vinodha Ramasamy (vinodha@google.com).
+
+This file is part of GCC.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef PROFILE_H
+#define PROFILE_H
+
+/* Additional information about edges. */
+struct edge_info
+{
+ unsigned int count_valid:1;
+
+ /* Is on the spanning tree. */
+ unsigned int on_tree:1;
+
+ /* Pretend this edge does not exist (it is abnormal and we've
+ inserted a fake to compensate). */
+ unsigned int ignore:1;
+};
+
+#define EDGE_INFO(e) ((struct edge_info *) (e)->aux)
+
+/* Smoothes the initial assigned basic block and edge counts using
+ a minimum cost flow algorithm. */
+extern void mcf_smooth_cfg (void);
+
+extern gcov_type sum_edge_counts (vec<edge, va_gc> *edges);
+
+extern void init_node_map (bool);
+extern void del_node_map (void);
+
+extern void get_working_sets (void);
+
+/* In predict.c. */
+extern gcov_type get_hot_bb_threshold (void);
+extern void set_hot_bb_threshold (gcov_type);
+
+#endif /* PROFILE_H */